summaryrefslogtreecommitdiffstats
path: root/examples/widgets/tools/undoframework/commands.h
diff options
context:
space:
mode:
Diffstat (limited to 'examples/widgets/tools/undoframework/commands.h')
-rw-r--r--examples/widgets/tools/undoframework/commands.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/examples/widgets/tools/undoframework/commands.h b/examples/widgets/tools/undoframework/commands.h
new file mode 100644
index 0000000000..7318668285
--- /dev/null
+++ b/examples/widgets/tools/undoframework/commands.h
@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+** of its contributors may be used to endorse or promote products derived
+** from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef COMMANDS_H
+#define COMMANDS_H
+
+#include <QUndoCommand>
+
+#include "diagramitem.h"
+
+//! [0]
+class MoveCommand : public QUndoCommand
+{
+public:
+ enum { Id = 1234 };
+
+ MoveCommand(DiagramItem *diagramItem, const QPointF &oldPos,
+ QUndoCommand *parent = 0);
+
+ void undo();
+ void redo();
+ bool mergeWith(const QUndoCommand *command);
+ int id() const { return Id; }
+
+private:
+ DiagramItem *myDiagramItem;
+ QPointF myOldPos;
+ QPointF newPos;
+};
+//! [0]
+
+//! [1]
+class DeleteCommand : public QUndoCommand
+{
+public:
+ explicit DeleteCommand(QGraphicsScene *graphicsScene, QUndoCommand *parent = 0);
+
+ void undo();
+ void redo();
+
+private:
+ DiagramItem *myDiagramItem;
+ QGraphicsScene *myGraphicsScene;
+};
+//! [1]
+
+//! [2]
+class AddCommand : public QUndoCommand
+{
+public:
+ AddCommand(DiagramItem::DiagramType addType, QGraphicsScene *graphicsScene,
+ QUndoCommand *parent = 0);
+ ~AddCommand();
+
+ void undo();
+ void redo();
+
+private:
+ DiagramItem *myDiagramItem;
+ QGraphicsScene *myGraphicsScene;
+ QPointF initialPosition;
+};
+//! [2]
+
+QString createCommandString(DiagramItem *item, const QPointF &point);
+
+#endif